function plt_hide_wptools_masonry_gallery_posts_for_divi_menus() {
//Hide the "Media → Categories" menu.
remove_submenu_page('upload.php', 'edit-tags.php?taxonomy=wpt-attachment-cat&post_type=attachment');
}
add_action('admin_menu', 'plt_hide_wptools_masonry_gallery_posts_for_divi_menus', 1000000000);